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| | ;; notmuch-show.el --- displaying notmuch forests.
;;
;; Copyright © Carl Worth
;; Copyright © David Edmondson
;;
;; This file is part of Notmuch.
;;
;; Notmuch is free software: you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; Notmuch is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
;;
;; Authors: Carl Worth <cworth@cworth.org>
;; David Edmondson <dme@dme.org>
(eval-when-compile (require 'cl))
(require 'icalendar)
(require 'goto-addr)
(require 'notmuch-lib)
(require 'notmuch-tag)
(require 'notmuch-query)
(require 'notmuch-mua)
(require 'notmuch-crypto)
(require 'notmuch-print)
(require 'notmuch-show-display)
(declare-function notmuch-call-notmuch-process "notmuch" (&rest args))
(declare-function notmuch-search-next-thread "notmuch" nil)
(declare-function notmuch-search-previous-thread "notmuch" nil)
(declare-function notmuch-search-show-thread "notmuch" nil)
(defcustom notmuch-show-hook '(notmuch-show-turn-on-visual-line-mode)
"Functions called after populating a `notmuch-show' buffer."
:type 'hook
:options '(notmuch-show-turn-on-visual-line-mode)
:group 'notmuch-show
:group 'notmuch-hooks)
(defcustom notmuch-show-part-button-default-action 'notmuch-show-save-part
"Default part header button action (on ENTER or mouse click)."
:group 'notmuch-show
:type '(choice (const :tag "Save part"
notmuch-show-save-part)
(const :tag "View part"
notmuch-show-view-part)
(const :tag "View interactively"
notmuch-show-interactively-view-part)))
(defcustom notmuch-show-only-matching-messages nil
"Only matching messages are shown by default."
:type 'boolean
:group 'notmuch-show)
(defvar notmuch-show-thread-id nil)
(make-variable-buffer-local 'notmuch-show-thread-id)
(put 'notmuch-show-thread-id 'permanent-local t)
(defvar notmuch-show-parent-buffer nil)
(make-variable-buffer-local 'notmuch-show-parent-buffer)
(put 'notmuch-show-parent-buffer 'permanent-local t)
(defvar notmuch-show-query-context nil)
(make-variable-buffer-local 'notmuch-show-query-context)
(put 'notmuch-show-query-context 'permanent-local t)
(defvar notmuch-show-elide-non-matching-messages nil)
(make-variable-buffer-local 'notmuch-show-elide-non-matching-messages)
(put 'notmuch-show-elide-non-matching-messages 'permanent-local t)
(defcustom notmuch-show-stash-mlarchive-link-alist
'(("Gmane" . "http://mid.gmane.org/")
("MARC" . "http://marc.info/?i=")
("Mail Archive, The" . "http://mail-archive.com/search?l=mid&q=")
("LKML" . "http://lkml.kernel.org/r/")
;; FIXME: can these services be searched by `Message-Id' ?
;; ("MarkMail" . "http://markmail.org/")
;; ("Nabble" . "http://nabble.com/")
;; ("opensubscriber" . "http://opensubscriber.com/")
)
"List of Mailing List Archives to use when stashing links.
These URIs are concatenated with the current message's
Message-Id in `notmuch-show-stash-mlarchive-link'."
:type '(alist :key-type (string :tag "Name")
:value-type (string :tag "URL"))
:group 'notmuch-show)
(defcustom notmuch-show-stash-mlarchive-link-default "Gmane"
"Default Mailing List Archive to use when stashing links.
This is used when `notmuch-show-stash-mlarchive-link' isn't
provided with an MLA argument nor `completing-read' input."
:type `(choice
,@(mapcar
(lambda (mla)
(list 'const :tag (car mla) :value (car mla)))
notmuch-show-stash-mlarchive-link-alist))
:group 'notmuch-show)
(defcustom notmuch-show-mark-read-tags '("-unread")
"List of tag changes to apply to a message when it is marked as read.
Tags starting with \"+\" (or not starting with either \"+\" or
\"-\") in the list will be added, and tags starting with \"-\"
will be removed from the message being marked as read.
For example, if you wanted to remove an \"unread\" tag and add a
\"read\" tag (which would make little sense), you would set:
(\"-unread\" \"+read\")"
:type '(repeat string)
:group 'notmuch-show)
(defmacro with-current-notmuch-show-message (&rest body)
"Evaluate body with current buffer set to the text of current message"
`(save-excursion
(let ((id (notmuch-show-get-message-id)))
(let ((buf (generate-new-buffer (concat "*notmuch-msg-" id "*"))))
(with-current-buffer buf
(let ((coding-system-for-read 'no-conversion))
(call-process notmuch-command nil t nil "show" "--format=raw" id)
,@body)
(kill-buffer buf))))))
(defun notmuch-show-turn-on-visual-line-mode ()
"Enable Visual Line mode."
(visual-line-mode t))
(defun notmuch-show-view-all-mime-parts ()
"Use external viewers to view all attachments from the current message."
(interactive)
(with-current-notmuch-show-message
;; We override the mm-inline-media-tests to indicate which message
;; parts are already sufficiently handled by the original
;; presentation of the message in notmuch-show mode. These parts
;; will be inserted directly into the temporary buffer of
;; with-current-notmuch-show-message and silently discarded.
;;
;; Any MIME part not explicitly mentioned here will be handled by an
;; external viewer as configured in the various mailcap files.
(let ((mm-inline-media-tests '(
("text/.*" ignore identity)
("application/pgp-signature" ignore identity)
("multipart/alternative" ignore identity)
("multipart/mixed" ignore identity)
("multipart/related" ignore identity)
)))
(mm-display-parts (mm-dissect-buffer)))))
(defun notmuch-foreach-mime-part (function mm-handle)
(cond ((stringp (car mm-handle))
(dolist (part (cdr mm-handle))
(notmuch-foreach-mime-part function part)))
((bufferp (car mm-handle))
(funcall function mm-handle))
(t (dolist (part mm-handle)
(notmuch-foreach-mime-part function part)))))
(defun notmuch-count-attachments (mm-handle)
(let ((count 0))
(notmuch-foreach-mime-part
(lambda (p)
(let ((disposition (mm-handle-disposition p)))
(and (listp disposition)
(or (equal (car disposition) "attachment")
(and (equal (car disposition) "inline")
(assq 'filename disposition)))
(incf count))))
mm-handle)
count))
(defun notmuch-save-attachments (mm-handle &optional queryp)
(notmuch-foreach-mime-part
(lambda (p)
(let ((disposition (mm-handle-disposition p)))
(and (listp disposition)
(or (equal (car disposition) "attachment")
(and (equal (car disposition) "inline")
(assq 'filename disposition)))
(or (not queryp)
(y-or-n-p
(concat "Save '" (cdr (assq 'filename disposition)) "' ")))
(mm-save-part p))))
mm-handle))
(defun notmuch-show-save-attachments ()
"Save all attachments from the current message."
(interactive)
(with-current-notmuch-show-message
(let ((mm-handle (mm-dissect-buffer)))
(notmuch-save-attachments
mm-handle (> (notmuch-count-attachments mm-handle) 1))))
(message "Done"))
(defun notmuch-show-with-message-as-text (fn)
"Apply FN to a text representation of the current message.
FN is called with one argument, the message properties. It should
operation on the contents of the current buffer."
;; Remake the header to ensure that all information is available.
(let* ((to (notmuch-show-get-to))
(cc (notmuch-show-get-cc))
(from (notmuch-show-get-from))
(subject (notmuch-show-get-subject))
(date (notmuch-show-get-date))
(tags (notmuch-show-get-tags))
(depth (notmuch-show-get-depth))
(header (concat
"Subject: " subject "\n"
"To: " to "\n"
(if (not (string= cc ""))
(concat "Cc: " cc "\n")
"")
"From: " from "\n"
"Date: " date "\n"
(if tags
(concat "Tags: "
(mapconcat #'identity tags ", ") "\n")
"")))
(all (buffer-substring (notmuch-show-message-top)
(notmuch-show-message-bottom)))
(props (notmuch-show-get-message-properties))
(indenting notmuch-show-indent-content))
(with-temp-buffer
(insert all)
(if indenting
(indent-rigidly (point-min) (point-max) (- depth)))
;; Remove the original header.
(goto-char (point-min))
(re-search-forward "^$" (point-max) nil)
(delete-region (point-min) (point))
(insert header)
(funcall fn props))))
(defun notmuch-show-print-message ()
"Print the current message."
(interactive)
(notmuch-show-with-message-as-text 'notmuch-print-message))
(defun notmuch-show-update-tags (tags)
"Update the displayed tags of the current message."
(save-excursion
(goto-char (notmuch-show-message-top))
(if (re-search-forward "(\\([^()]*\\))$" (line-end-position) t)
(let ((inhibit-read-only t))
(replace-match (concat "("
(notmuch-tag-format-tags tags)
")"))))))
(define-button-type 'notmuch-show-part-button-type
'action 'notmuch-show-part-button-default
'keymap 'notmuch-show-part-button-map
'follow-link t
'face 'message-mml
:supertype 'notmuch-button-type)
(defvar notmuch-show-part-button-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map button-map)
(define-key map "s" 'notmuch-show-part-button-save)
(define-key map "v" 'notmuch-show-part-button-view)
(define-key map "o" 'notmuch-show-part-button-interactively-view)
(define-key map "|" 'notmuch-show-part-button-pipe)
map)
"Submap for button commands")
(fset 'notmuch-show-part-button-map notmuch-show-part-button-map)
;; Functions handling particular MIME parts.
(defmacro notmuch-with-temp-part-buffer (message-id nth &rest body)
(declare (indent 2))
(let ((process-crypto (make-symbol "process-crypto")))
`(let ((,process-crypto notmuch-show-process-crypto))
(with-temp-buffer
(setq notmuch-show-process-crypto ,process-crypto)
;; Always acquires the part via `notmuch part', even if it is
;; available in the JSON output.
(insert (notmuch-get-bodypart-internal ,message-id ,nth notmuch-show-process-crypto))
,@body))))
(defun notmuch-show-save-part (message-id nth &optional filename content-type)
(notmuch-with-temp-part-buffer message-id nth
(let ((file (read-file-name
"Filename to save as: "
(or mailcap-download-directory "~/")
nil nil
filename)))
;; Don't re-compress .gz & al. Arguably we should make
;; `file-name-handler-alist' nil, but that would chop
;; ange-ftp, which is reasonable to use here.
(mm-write-region (point-min) (point-max) file nil nil nil 'no-conversion t))))
(defun notmuch-show-view-part (message-id nth &optional filename content-type )
(notmuch-with-temp-part-buffer message-id nth
(let* ((disposition (if filename `(attachment (filename . ,filename))))
(handle (mm-make-handle (current-buffer) (list content-type)
nil nil disposition))
;; Set the default save directory to be consistent with
;; `notmuch-show-save-part'.
(mm-default-directory (or mailcap-download-directory "~/"))
;; set mm-inlined-types to nil to force an external viewer
(mm-inlined-types nil))
(mm-display-part handle))))
(defun notmuch-show-interactively-view-part (message-id nth &optional filename content-type)
(notmuch-with-temp-part-buffer message-id nth
(let ((handle (mm-make-handle (current-buffer) (list content-type))))
(mm-interactively-view-part handle))))
(defun notmuch-show-pipe-part (message-id nth &optional filename content-type)
(notmuch-with-temp-part-buffer message-id nth
(let ((handle (mm-make-handle (current-buffer) (list content-type))))
(mm-pipe-part handle))))
(defun notmuch-show-make-symbol (type)
(make-symbol (concat "notmuch-show-" type)))
(defun notmuch-show-toggle-process-crypto ()
"Toggle the processing of cryptographic MIME parts."
(interactive)
(setq notmuch-show-process-crypto (not notmuch-show-process-crypto))
(message (if notmuch-show-process-crypto
"Processing cryptographic MIME parts."
"Not processing cryptographic MIME parts."))
(notmuch-show-refresh-view))
(defun notmuch-show-toggle-elide-non-matching ()
"Toggle the display of non-matching messages."
(interactive)
(setq notmuch-show-elide-non-matching-messages (not notmuch-show-elide-non-matching-messages))
(message (if notmuch-show-elide-non-matching-messages
"Showing matching messages only."
"Showing all messages."))
(notmuch-show-refresh-view))
(defun notmuch-show-toggle-thread-indentation ()
"Toggle the indentation of threads."
(interactive)
(setq notmuch-show-indent-content (not notmuch-show-indent-content))
(message (if notmuch-show-indent-content
"Content is indented."
"Content is not indented."))
(notmuch-show-refresh-view))
(defvar notmuch-id-regexp
(concat
;; Match the id: prefix only if it begins a word (to disallow, for
;; example, matching cid:).
"\\<id:\\("
;; If the term starts with a ", then parse Xapian's quoted boolean
;; term syntax, which allows for anything as long as embedded
;; double quotes escaped by doubling them. We also disallow
;; newlines (which Xapian allows) to prevent runaway terms.
"\"\\([^\"\n]\\|\"\"\\)*\""
;; Otherwise, parse Xapian's unquoted syntax, which goes up to the
;; next space or ). We disallow [.,;] as the last character
;; because these are probably part of the surrounding text, and not
;; part of the id. This doesn't match single character ids; meh.
"\\|[^\"[:space:])][^[:space:])]*[^])[:space:].,:;?!]"
"\\)")
"The regexp used to match id: links in messages.")
(defvar notmuch-mid-regexp
;; goto-address-url-regexp matched cid: links, which have the same
;; grammar as the message ID part of a mid: link. Construct the
;; regexp using the same technique as goto-address-url-regexp.
(concat "\\<mid:\\(" thing-at-point-url-path-regexp "\\)")
"The regexp used to match mid: links in messages.
See RFC 2392.")
(defun notmuch-show-buttonise-links (start end)
"Buttonise URLs and mail addresses between START and END.
This also turns id:\"<message id>\"-parts and mid: links into
buttons for a corresponding notmuch search."
(goto-address-fontify-region start end)
(save-excursion
(let (links)
(goto-char start)
(while (re-search-forward notmuch-id-regexp end t)
(push (list (match-beginning 0) (match-end 0)
(match-string-no-properties 0)) links))
(goto-char start)
(while (re-search-forward notmuch-mid-regexp end t)
(let* ((mid-cid (match-string-no-properties 1))
(mid (save-match-data
(string-match "^[^/]*" mid-cid)
(url-unhex-string (match-string 0 mid-cid)))))
(push (list (match-beginning 0) (match-end 0)
(notmuch-id-to-query mid)) links)))
(dolist (link links)
;; Remove the overlay created by goto-address-mode
(remove-overlays (first link) (second link) 'goto-address t)
(make-text-button (first link) (second link)
:type 'notmuch-button-type
'action `(lambda (arg)
(notmuch-show ,(third link)))
'follow-link t
'help-echo "Mouse-1, RET: search for this message"
'face goto-address-mail-face)))))
;;;###autoload
(defun notmuch-show (thread-id &optional parent-buffer query-context buffer-name)
"Run \"notmuch show\" with the given thread ID and display results.
The optional PARENT-BUFFER is the notmuch-search buffer from
which this notmuch-show command was executed, (so that the
next thread from that buffer can be show when done with this
one).
The optional QUERY-CONTEXT is a notmuch search term. Only
messages from the thread matching this search term are shown if
non-nil.
The optional BUFFER-NAME provides the name of the buffer in
which the message thread is shown. If it is nil (which occurs
when the command is called interactively) the argument to the
function is used."
(interactive "sNotmuch show: ")
(let ((buffer-name (generate-new-buffer-name
(or buffer-name
(concat "*notmuch-" thread-id "*")))))
(switch-to-buffer (get-buffer-create buffer-name))
;; Set the default value for `notmuch-show-process-crypto' in this
;; buffer.
(setq notmuch-show-process-crypto notmuch-crypto-process-mime)
;; Set the default value for
;; `notmuch-show-elide-non-matching-messages' in this buffer. If
;; there is a prefix argument, invert the default.
(setq notmuch-show-elide-non-matching-messages notmuch-show-only-matching-messages)
(if current-prefix-arg
(setq notmuch-show-elide-non-matching-messages (not notmuch-show-elide-non-matching-messages)))
(setq notmuch-show-thread-id thread-id
notmuch-show-parent-buffer parent-buffer
notmuch-show-query-context query-context)
(notmuch-show-build-buffer)
(notmuch-show-goto-first-wanted-message)
(current-buffer)))
(defun notmuch-show-build-buffer ()
(let ((inhibit-read-only t))
(notmuch-show-mode)
;; Don't track undo information for this buffer
(set 'buffer-undo-list t)
(erase-buffer)
(goto-char (point-min))
(save-excursion
(let* ((basic-args (list notmuch-show-thread-id))
(args (if notmuch-show-query-context
(append (list "\'") basic-args
(list "and (" notmuch-show-query-context ")\'"))
(append (list "\'") basic-args (list "\'"))))
(cli-args (cons "--exclude=false"
(when notmuch-show-elide-non-matching-messages
(list "--entire-thread=false")))))
(notmuch-show-insert-forest (notmuch-query-get-threads (append cli-args args)))
;; If the query context reduced the results to nothing, run
;; the basic query.
(when (and (eq (buffer-size) 0)
notmuch-show-query-context)
(notmuch-show-insert-forest
(notmuch-query-get-threads (append cli-args basic-args)))))
(jit-lock-register #'notmuch-show-buttonise-links)
;; Set the header line to the subject of the first message.
(setq header-line-format (notmuch-show-strip-re (notmuch-show-get-subject)))
(run-hooks 'notmuch-show-hook))))
(defun notmuch-show-capture-state ()
"Capture the state of the current buffer.
This includes:
- the list of open messages,
- the current message."
(list (notmuch-show-get-message-id) (notmuch-show-get-message-ids-for-open-messages)))
(defun notmuch-show-apply-state (state)
"Apply STATE to the current buffer.
This includes:
- opening the messages previously opened,
- closing all other messages,
- moving to the correct current message."
(let ((current (car state))
(open (cadr state)))
;; Open those that were open.
(goto-char (point-min))
(loop do (notmuch-show-message-visible (notmuch-show-get-message-properties)
(member (notmuch-show-get-message-id) open))
until (not (notmuch-show-goto-message-next)))
;; Go to the previously open message.
(goto-char (point-min))
(unless (loop if (string= current (notmuch-show-get-message-id))
return t
until (not (notmuch-show-goto-message-next)))
(goto-char (point-min))
(message "Previously current message not found."))
(notmuch-show-message-adjust)))
(defun notmuch-show-refresh-view (&optional reset-state)
"Refresh the current view.
Refreshes the current view, observing changes in display
preferences. If invoked with a prefix argument (or RESET-STATE is
non-nil) then the state of the buffer (open/closed messages) is
reset based on the original query."
(interactive "P")
(let ((inhibit-read-only t)
(state (unless reset-state
(notmuch-show-capture-state))))
;; erase-buffer does not seem to remove overlays, which can lead
;; to weird effects such as remaining images, so remove them
;; manually.
(remove-overlays)
(erase-buffer)
(notmuch-show-build-buffer)
(if state
(notmuch-show-apply-state state)
;; We're resetting state, so navigate to the first open message
;; and mark it read, just like opening a new show buffer.
(notmuch-show-goto-first-wanted-message))))
(defvar notmuch-show-stash-map
(let ((map (make-sparse-keymap)))
(define-key map "c" 'notmuch-show-stash-cc)
(define-key map "d" 'notmuch-show-stash-date)
(define-key map "F" 'notmuch-show-stash-filename)
(define-key map "f" 'notmuch-show-stash-from)
(define-key map "i" 'notmuch-show-stash-message-id)
(define-key map "I" 'notmuch-show-stash-message-id-stripped)
(define-key map "s" 'notmuch-show-stash-subject)
(define-key map "T" 'notmuch-show-stash-tags)
(define-key map "t" 'notmuch-show-stash-to)
(define-key map "l" 'notmuch-show-stash-mlarchive-link)
(define-key map "L" 'notmuch-show-stash-mlarchive-link-and-go)
map)
"Submap for stash commands")
(fset 'notmuch-show-stash-map notmuch-show-stash-map)
(defvar notmuch-show-mode-map
(let ((map (make-sparse-keymap)))
(define-key map "?" 'notmuch-help)
(define-key map "q" 'notmuch-kill-this-buffer)
(define-key map (kbd "<C-tab>") 'widget-backward)
(define-key map (kbd "M-TAB") 'notmuch-show-previous-button)
(define-key map (kbd "<backtab>") 'notmuch-show-previous-button)
(define-key map (kbd "TAB") 'notmuch-show-next-button)
(define-key map "s" 'notmuch-search)
(define-key map "m" 'notmuch-mua-new-mail)
(define-key map "f" 'notmuch-show-forward-message)
(define-key map "r" 'notmuch-show-reply-sender)
(define-key map "R" 'notmuch-show-reply)
(define-key map "|" 'notmuch-show-pipe-message)
(define-key map "w" 'notmuch-show-save-attachments)
(define-key map "V" 'notmuch-show-view-raw-message)
(define-key map "v" 'notmuch-show-view-all-mime-parts)
(define-key map "c" 'notmuch-show-stash-map)
(define-key map "=" 'notmuch-show-refresh-view)
(define-key map "h" 'notmuch-show-toggle-visibility-headers)
(define-key map "*" 'notmuch-show-tag-all)
(define-key map "-" 'notmuch-show-remove-tag)
(define-key map "+" 'notmuch-show-add-tag)
(define-key map "X" 'notmuch-show-archive-thread-then-exit)
(define-key map "x" 'notmuch-show-archive-message-then-next-or-exit)
(define-key map "A" 'notmuch-show-archive-thread-then-next)
(define-key map "a" 'notmuch-show-archive-message-then-next-or-next-thread)
(define-key map "N" 'notmuch-show-next-message)
(define-key map "P" 'notmuch-show-previous-message)
(define-key map "n" 'notmuch-show-next-open-message)
(define-key map "p" 'notmuch-show-previous-open-message)
(define-key map (kbd "M-n") 'notmuch-show-next-thread-show)
(define-key map (kbd "M-p") 'notmuch-show-previous-thread-show)
(define-key map (kbd "DEL") 'notmuch-show-rewind)
(define-key map " " 'notmuch-show-advance-and-archive)
(define-key map (kbd "M-RET") 'notmuch-show-open-or-close-all)
(define-key map (kbd "RET") 'notmuch-show-toggle-message)
(define-key map "#" 'notmuch-show-print-message)
(define-key map "!" 'notmuch-show-toggle-elide-non-matching)
(define-key map "$" 'notmuch-show-toggle-process-crypto)
(define-key map "<" 'notmuch-show-toggle-thread-indentation)
(define-key map "t" 'toggle-truncate-lines)
map)
"Keymap for \"notmuch show\" buffers.")
(fset 'notmuch-show-mode-map notmuch-show-mode-map)
(defun notmuch-show-mode ()
"Major mode for viewing a thread with notmuch.
This buffer contains the results of the \"notmuch show\" command
for displaying a single thread of email from your email archives.
By default, various components of email messages, (citations,
signatures, already-read messages), are hidden. You can make
these parts visible by clicking with the mouse button or by
pressing RET after positioning the cursor on a hidden part, (for
which \\[notmuch-show-next-button] and \\[notmuch-show-previous-button] are helpful).
Reading the thread sequentially is well-supported by pressing
\\[notmuch-show-advance-and-archive]. This will scroll the current message (if necessary), advance
to the next message, or advance to the next thread (if already on
the last message of a thread).
Other commands are available to read or manipulate the thread
more selectively, (such as '\\[notmuch-show-next-message]' and '\\[notmuch-show-previous-message]' to advance to messages
without removing any tags, and '\\[notmuch-show-archive-thread]' to archive an entire thread
without scrolling through with \\[notmuch-show-advance-and-archive]).
You can add or remove arbitrary tags from the current message with
'\\[notmuch-show-add-tag]' or '\\[notmuch-show-remove-tag]'.
All currently available key bindings:
\\{notmuch-show-mode-map}"
(interactive)
(kill-all-local-variables)
(use-local-map notmuch-show-mode-map)
(setq major-mode 'notmuch-show-mode
mode-name "notmuch-show")
(setq buffer-read-only t
truncate-lines t))
(defun notmuch-show-move-to-message-top ()
(goto-char (notmuch-show-message-top)))
(defun notmuch-show-move-to-message-bottom ()
(goto-char (notmuch-show-message-bottom)))
(defun notmuch-show-message-adjust ()
(recenter 0))
;; Movement related functions.
;; There's some strangeness here where a text property applied to a
;; region a->b is not found when point is at b. We walk backwards
;; until finding the property.
(defun notmuch-show-message-extent ()
(let (r)
(save-excursion
(while (not (setq r (get-text-property (point) :notmuch-message-extent)))
(backward-char)))
r))
(defun notmuch-show-message-top ()
(car (notmuch-show-message-extent)))
(defun notmuch-show-message-bottom ()
(cdr (notmuch-show-message-extent)))
(defun notmuch-show-goto-message-next ()
(let ((start (point)))
(notmuch-show-move-to-message-bottom)
(if (not (eobp))
t
(goto-char start)
nil)))
(defun notmuch-show-goto-message-previous ()
(notmuch-show-move-to-message-top)
(if (bobp)
nil
(backward-char)
(notmuch-show-move-to-message-top)
t))
(defun notmuch-show-mapc (function)
"Iterate through all messages in the current thread with
`notmuch-show-goto-message-next' and call FUNCTION for side
effects."
(save-excursion
(goto-char (point-min))
(loop do (funcall function)
while (notmuch-show-goto-message-next))))
;; Functions for setting and getting attributes of the current
;; message.
(defun notmuch-show-set-message-properties (props)
(save-excursion
(notmuch-show-move-to-message-top)
(put-text-property (point) (+ (point) 1) :notmuch-message-properties props)))
(defun notmuch-show-get-message-properties ()
"Return the properties of the current message as a plist.
Some useful entries are:
:headers - Property list containing the headers :Date, :Subject, :From, etc.
:body - Body of the message
:tags - Tags for this message"
(save-excursion
(notmuch-show-move-to-message-top)
(get-text-property (point) :notmuch-message-properties)))
(defun notmuch-show-set-prop (prop val &optional props)
(let ((inhibit-read-only t)
(props (or props
(notmuch-show-get-message-properties))))
(plist-put props prop val)
(notmuch-show-set-message-properties props)))
(defun notmuch-show-get-prop (prop &optional props)
(let ((props (or props
(notmuch-show-get-message-properties))))
(plist-get props prop)))
(defun notmuch-show-get-message-id (&optional bare)
"Return an id: query for the Message-Id of the current message.
If optional argument BARE is non-nil, return
the Message-Id without id: prefix and escaping."
(if bare
(notmuch-show-get-prop :id)
(notmuch-id-to-query (notmuch-show-get-prop :id))))
(defun notmuch-show-get-messages-ids ()
"Return all id: queries of messages in the current thread."
(let ((message-ids))
(notmuch-show-mapc
(lambda () (push (notmuch-show-get-message-id) message-ids)))
message-ids))
(defun notmuch-show-get-messages-ids-search ()
"Return a search string for all message ids of messages in the
current thread."
(mapconcat 'identity (notmuch-show-get-messages-ids) " or "))
;; dme: Would it make sense to use a macro for many of these?
(defun notmuch-show-get-filename ()
"Return the filename of the current message."
(notmuch-show-get-prop :filename))
(defun notmuch-show-get-header (header &optional props)
"Return the named header of the current message, if any."
(plist-get (notmuch-show-get-prop :headers props) header))
(defun notmuch-show-get-cc ()
(notmuch-show-get-header :Cc))
(defun notmuch-show-get-date ()
(notmuch-show-get-header :Date))
(defun notmuch-show-get-from ()
(notmuch-show-get-header :From))
(defun notmuch-show-get-subject ()
(notmuch-show-get-header :Subject))
(defun notmuch-show-get-to ()
(notmuch-show-get-header :To))
(defun notmuch-show-get-depth ()
(notmuch-show-get-prop :depth))
(defun notmuch-show-set-tags (tags)
"Set the tags of the current message."
(notmuch-show-set-prop :tags tags)
(notmuch-show-update-tags tags))
(defun notmuch-show-get-tags ()
"Return the tags of the current message."
(notmuch-show-get-prop :tags))
(defun notmuch-show-message-visible-p ()
"Is the current message visible?"
(notmuch-show-get-prop :message-visible))
(defun notmuch-show-headers-visible-p ()
"Are the headers of the current message visible?"
(notmuch-show-get-prop :headers-visible))
(defun notmuch-show-mark-read (&optional unread)
"Mark the current message as read.
Mark the current message as read by applying the tag changes in
`notmuch-show-mark-read-tags' to it (remove the \"unread\" tag by
default). If a prefix argument is given, the message will be
marked as unread, i.e. the tag changes in
`notmuch-show-mark-read-tags' will be reversed."
(interactive "P")
(when notmuch-show-mark-read-tags
(apply 'notmuch-show-tag-message
(notmuch-tag-change-list notmuch-show-mark-read-tags unread))))
;; Functions for getting attributes of several messages in the current
;; thread.
(defun notmuch-show-get-message-ids-for-open-messages ()
"Return a list of all id: queries for open messages in the current thread."
(save-excursion
(let (message-ids done)
(goto-char (point-min))
(while (not done)
(if (notmuch-show-message-visible-p)
(setq message-ids (append message-ids (list (notmuch-show-get-message-id)))))
(setq done (not (notmuch-show-goto-message-next)))
)
message-ids
)))
;; Commands typically bound to keys.
(defun notmuch-show-advance ()
"Advance through thread.
If the current message in the thread is not yet fully visible,
scroll by a near screenful to read more of the message.
Otherwise, (the end of the current message is already within the
current window), advance to the next open message."
(interactive)
(let* ((end-of-this-message (notmuch-show-message-bottom))
(visible-end-of-this-message (1- end-of-this-message))
(ret nil))
(while (invisible-p visible-end-of-this-message)
(setq visible-end-of-this-message
(max (point-min)
(1- (previous-single-char-property-change
visible-end-of-this-message 'invisible)))))
(cond
;; Ideally we would test `end-of-this-message' against the result
;; of `window-end', but that doesn't account for the fact that
;; the end of the message might be hidden.
((and visible-end-of-this-message
(> visible-end-of-this-message (window-end)))
;; The bottom of this message is not visible - scroll.
(scroll-up nil))
((not (= end-of-this-message (point-max)))
;; This is not the last message - move to the next visible one.
(notmuch-show-next-open-message))
((not (= (point) (point-max)))
;; This is the last message, but the cursor is not at the end of
;; the buffer. Move it there.
(goto-char (point-max)))
(t
;; This is the last message - change the return value
(setq ret t)))
ret))
(defun notmuch-show-advance-and-archive ()
"Advance through thread and archive.
This command is intended to be one of the simplest ways to
process a thread of email. It works exactly like
notmuch-show-advance, in that it scrolls through messages in a
show buffer, except that when it gets to the end of the buffer it
archives the entire current thread, (remove the \"inbox\" tag
from each message), kills the buffer, and displays the next
thread from the search from which this thread was originally
shown."
(interactive)
(if (notmuch-show-advance)
(notmuch-show-archive-thread-then-next)))
(defun notmuch-show-rewind ()
"Backup through the thread, (reverse scrolling compared to \\[notmuch-show-advance-and-archive]).
Specifically, if the beginning of the previous email is fewer
than `window-height' lines from the current point, move to it
just like `notmuch-show-previous-message'.
Otherwise, just scroll down a screenful of the current message.
This command does not modify any message tags, (it does not undo
any effects from previous calls to
`notmuch-show-advance-and-archive'."
(interactive)
(let ((start-of-message (notmuch-show-message-top))
(start-of-window (window-start)))
(cond
;; Either this message is properly aligned with the start of the
;; window or the start of this message is not visible on the
;; screen - scroll.
((or (= start-of-message start-of-window)
(< start-of-message start-of-window))
(scroll-down)
;; If a small number of lines from the previous message are
;; visible, realign so that the top of the current message is at
;; the top of the screen.
(when (<= (count-screen-lines (window-start) start-of-message)
next-screen-context-lines)
(goto-char (notmuch-show-message-top))
(notmuch-show-message-adjust))
;; Move to the top left of the window.
(goto-char (window-start)))
(t
;; Move to the previous message.
(notmuch-show-previous-message)))))
(defun notmuch-show-reply (&optional prompt-for-sender)
"Reply to the sender and all recipients of the current message."
(interactive "P")
(notmuch-mua-new-reply (notmuch-show-get-message-id) prompt-for-sender t))
(defun notmuch-show-reply-sender (&optional prompt-for-sender)
"Reply to the sender of the current message."
(interactive "P")
(notmuch-mua-new-reply (notmuch-show-get-message-id) prompt-for-sender nil))
(defun notmuch-show-forward-message (&optional prompt-for-sender)
"Forward the current message."
(interactive "P")
(with-current-notmuch-show-message
(notmuch-mua-new-forward-message prompt-for-sender)))
(defun notmuch-show-next-message (&optional pop-at-end)
"Show the next message.
If a prefix argument is given and this is the last message in the
thread, navigate to the next thread in the parent search buffer."
(interactive "P")
(if (notmuch-show-goto-message-next)
(progn
(notmuch-show-mark-read)
(notmuch-show-message-adjust))
(if pop-at-end
(notmuch-show-next-thread)
(goto-char (point-max)))))
(defun notmuch-show-previous-message ()
"Show the previous message or the start of the current message."
(interactive)
(if (= (point) (notmuch-show-message-top))
(notmuch-show-goto-message-previous)
(notmuch-show-move-to-message-top))
(notmuch-show-mark-read)
(notmuch-show-message-adjust))
(defun notmuch-show-next-open-message (&optional pop-at-end)
"Show the next open message.
If a prefix argument is given and this is the last open message
in the thread, navigate to the next thread in the parent search
buffer. Return t if there was a next open message in the thread
to show, nil otherwise."
(interactive "P")
(let (r)
(while (and (setq r (notmuch-show-goto-message-next))
(not (notmuch-show-message-visible-p))))
(if r
(progn
(notmuch-show-mark-read)
(notmuch-show-message-adjust))
(if pop-at-end
(notmuch-show-next-thread)
(goto-char (point-max))))
r))
(defun notmuch-show-next-matching-message ()
"Show the next matching message."
(interactive)
(let (r)
(while (and (setq r (notmuch-show-goto-message-next))
(not (notmuch-show-get-prop :match))))
(if r
(progn
(notmuch-show-mark-read)
(notmuch-show-message-adjust))
(goto-char (point-max)))))
(defun notmuch-show-open-if-matched ()
"Open a message if it is matched (whether or not excluded)."
(let ((props (notmuch-show-get-message-properties)))
(notmuch-show-message-visible props (plist-get props :match))))
(defun notmuch-show-goto-first-wanted-message ()
"Move to the first open message and mark it read"
(goto-char (point-min))
(if (notmuch-show-message-visible-p)
(notmuch-show-mark-read)
(notmuch-show-next-open-message))
(when (eobp)
;; There are no matched non-excluded messages so open all matched
;; (necessarily excluded) messages and go to the first.
(notmuch-show-mapc 'notmuch-show-open-if-matched)
(force-window-update)
(goto-char (point-min))
(if (notmuch-show-message-visible-p)
(notmuch-show-mark-read)
(notmuch-show-next-open-message))))
(defun notmuch-show-previous-open-message ()
"Show the previous open message."
(interactive)
(while (and (if (= (point) (notmuch-show-message-top))
(notmuch-show-goto-message-previous)
(notmuch-show-move-to-message-top))
(not (notmuch-show-message-visible-p))))
(notmuch-show-mark-read)
(notmuch-show-message-adjust))
(defun notmuch-show-view-raw-message ()
"View the file holding the current message."
(interactive)
(let* ((id (notmuch-show-get-message-id))
(buf (get-buffer-create (concat "*notmuch-raw-" id "*"))))
(call-process notmuch-command nil buf nil "show" "--format=raw" id)
(switch-to-buffer buf)
(goto-char (point-min))
(set-buffer-modified-p nil)
(view-buffer buf 'kill-buffer-if-not-modified)))
(defun notmuch-show-pipe-message (entire-thread command)
"Pipe the contents of the current message (or thread) to the given command.
The given command will be executed with the raw contents of the
current email message as stdin. Anything printed by the command
to stdout or stderr will appear in the *notmuch-pipe* buffer.
When invoked with a prefix argument, the command will receive all
open messages in the current thread (formatted as an mbox) rather
than only the current message."
(interactive "P\nsPipe message to command: ")
(let (shell-command)
(if entire-thread
(setq shell-command
(concat notmuch-command " show --format=mbox --exclude=false "
(shell-quote-argument
(mapconcat 'identity (notmuch-show-get-message-ids-for-open-messages) " OR "))
" | " command))
(setq shell-command
(concat notmuch-command " show --format=raw "
(shell-quote-argument (notmuch-show-get-message-id)) " | " command)))
(let ((buf (get-buffer-create (concat "*notmuch-pipe*"))))
(with-current-buffer buf
(setq buffer-read-only nil)
(erase-buffer)
(let ((exit-code (call-process-shell-command shell-command nil buf)))
(goto-char (point-max))
(set-buffer-modified-p nil)
(setq buffer-read-only t)
(unless (zerop exit-code)
(switch-to-buffer-other-window buf)
(message (format "Command '%s' exited abnormally with code %d"
shell-command exit-code))))))))
(defun notmuch-show-tag-message (&rest tag-changes)
"Change tags for the current message.
TAG-CHANGES is a list of tag operations for `notmuch-tag'."
(let* ((current-tags (notmuch-show-get-tags))
(new-tags (notmuch-update-tags current-tags tag-changes)))
(unless (equal current-tags new-tags)
(funcall 'notmuch-tag (notmuch-show-get-message-id) tag-changes)
(notmuch-show-set-tags new-tags))))
(defun notmuch-show-tag (&optional tag-changes)
"Change tags for the current message.
See `notmuch-tag' for information on the format of TAG-CHANGES."
(interactive)
(setq tag-changes (funcall 'notmuch-tag (notmuch-show-get-message-id) tag-changes))
(let* ((current-tags (notmuch-show-get-tags))
(new-tags (notmuch-update-tags current-tags tag-changes)))
(unless (equal current-tags new-tags)
(notmuch-show-set-tags new-tags))))
(defun notmuch-show-tag-all (&optional tag-changes)
"Change tags for all messages in the current show buffer.
See `notmuch-tag' for information on the format of TAG-CHANGES."
(interactive)
(setq tag-changes (funcall 'notmuch-tag (notmuch-show-get-messages-ids-search) tag-changes))
(notmuch-show-mapc
(lambda ()
(let* ((current-tags (notmuch-show-get-tags))
(new-tags (notmuch-update-tags current-tags tag-changes)))
(unless (equal current-tags new-tags)
(notmuch-show-set-tags new-tags))))))
(defun notmuch-show-add-tag ()
"Same as `notmuch-show-tag' but sets initial input to '+'."
(interactive)
(notmuch-show-tag "+"))
(defun notmuch-show-remove-tag ()
"Same as `notmuch-show-tag' but sets initial input to '-'."
(interactive)
(notmuch-show-tag "-"))
(defun notmuch-show-toggle-visibility-headers ()
"Toggle the visibility of the current message headers."
(interactive)
(let ((props (notmuch-show-get-message-properties)))
(notmuch-show-headers-visible
props
(not (plist-get props :headers-visible))))
(force-window-update))
(defun notmuch-show-toggle-message ()
"Toggle the visibility of the current message."
(interactive)
(let ((props (notmuch-show-get-message-properties)))
(notmuch-show-message-visible
props
(not (plist-get props :message-visible))))
(force-window-update))
(defun notmuch-show-open-or-close-all ()
"Set the visibility all of the messages in the current thread.
By default make all of the messages visible. With a prefix
argument, hide all of the messages."
(interactive)
(save-excursion
(goto-char (point-min))
(loop do (notmuch-show-message-visible (notmuch-show-get-message-properties)
(not current-prefix-arg))
until (not (notmuch-show-goto-message-next))))
(force-window-update))
(defun notmuch-show-next-button ()
"Advance point to the next button in the buffer."
(interactive)
(forward-button 1))
(defun notmuch-show-previous-button ()
"Move point back to the previous button in the buffer."
(interactive)
(backward-button 1))
(defun notmuch-show-next-thread (&optional show previous)
"Move to the next item in the search results, if any.
If SHOW is non-nil, open the next item in a show
buffer. Otherwise just highlight the next item in the search
buffer. If PREVIOUS is non-nil, move to the previous item in the
search results instead."
(interactive "P")
(let ((parent-buffer notmuch-show-parent-buffer))
(notmuch-kill-this-buffer)
(when (buffer-live-p parent-buffer)
(switch-to-buffer parent-buffer)
(and (if previous
(notmuch-search-previous-thread)
(notmuch-search-next-thread))
show
(notmuch-search-show-thread)))))
(defun notmuch-show-next-thread-show ()
"Show the next thread in the search results, if any."
(interactive)
(notmuch-show-next-thread t))
(defun notmuch-show-previous-thread-show ()
"Show the previous thread in the search results, if any."
(interactive)
(notmuch-show-next-thread t t))
(defun notmuch-show-archive-thread (&optional unarchive)
"Archive each message in thread.
Archive each message currently shown by applying the tag changes
in `notmuch-archive-tags' to each (remove the \"inbox\" tag by
default). If a prefix argument is given, the messages will be
\"unarchived\", i.e. the tag changes in `notmuch-archive-tags'
will be reversed.
Note: This command is safe from any race condition of new messages
being delivered to the same thread. It does not archive the
entire thread, but only the messages shown in the current
buffer."
(interactive "P")
(when notmuch-archive-tags
(notmuch-show-tag-all
(notmuch-tag-change-list notmuch-archive-tags unarchive))))
(defun notmuch-show-archive-thread-then-next ()
"Archive all messages in the current buffer, then show next thread from search."
(interactive)
(notmuch-show-archive-thread)
(notmuch-show-next-thread t))
(defun notmuch-show-archive-thread-then-exit ()
"Archive all messages in the current buffer, then exit back to search results."
(interactive)
(notmuch-show-archive-thread)
(notmuch-show-next-thread))
(defun notmuch-show-archive-message (&optional unarchive)
"Archive the current message.
Archive the current message by applying the tag changes in
`notmuch-archive-tags' to it (remove the \"inbox\" tag by
default). If a prefix argument is given, the message will be
\"unarchived\", i.e. the tag changes in `notmuch-archive-tags'
will be reversed."
(interactive "P")
(when notmuch-archive-tags
(apply 'notmuch-show-tag-message
(notmuch-tag-change-list notmuch-archive-tags unarchive))))
(defun notmuch-show-archive-message-then-next-or-exit ()
"Archive the current message, then show the next open message in the current thread.
If at the last open message in the current thread, then exit back
to search results."
(interactive)
(notmuch-show-archive-message)
(notmuch-show-next-open-message t))
(defun notmuch-show-archive-message-then-next-or-next-thread ()
"Archive the current message, then show the next open message in the current thread.
If at the last open message in the current thread, then show next
thread from search."
(interactive)
(notmuch-show-archive-message)
(unless (notmuch-show-next-open-message)
(notmuch-show-next-thread t)))
(defun notmuch-show-stash-cc ()
"Copy CC field of current message to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-cc)))
(defun notmuch-show-stash-date ()
"Copy date of current message to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-date)))
(defun notmuch-show-stash-filename ()
"Copy filename of current message to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-filename)))
(defun notmuch-show-stash-from ()
"Copy From address of current message to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-from)))
(defun notmuch-show-stash-message-id (&optional stash-thread-id)
"Copy id: query matching the current message to kill-ring.
If invoked with a prefix argument (or STASH-THREAD-ID is
non-nil), copy thread: query matching the current thread to
kill-ring."
(interactive "P")
(if stash-thread-id
(notmuch-common-do-stash notmuch-show-thread-id)
(notmuch-common-do-stash (notmuch-show-get-message-id))))
(defun notmuch-show-stash-message-id-stripped ()
"Copy message ID of current message (sans `id:' prefix) to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-message-id t)))
(defun notmuch-show-stash-subject ()
"Copy Subject field of current message to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-subject)))
(defun notmuch-show-stash-tags ()
"Copy tags of current message to kill-ring as a comma separated list."
(interactive)
(notmuch-common-do-stash (mapconcat 'identity (notmuch-show-get-tags) ",")))
(defun notmuch-show-stash-to ()
"Copy To address of current message to kill-ring."
(interactive)
(notmuch-common-do-stash (notmuch-show-get-to)))
(defun notmuch-show-stash-mlarchive-link (&optional mla)
"Copy an ML Archive URI for the current message to the kill-ring.
This presumes that the message is available at the selected Mailing List Archive.
If optional argument MLA is non-nil, use the provided key instead of prompting
the user (see `notmuch-show-stash-mlarchive-link-alist')."
(interactive)
(notmuch-common-do-stash
(concat (cdr (assoc
(or mla
(let ((completion-ignore-case t))
(completing-read
"Mailing List Archive: "
notmuch-show-stash-mlarchive-link-alist
nil t nil nil notmuch-show-stash-mlarchive-link-default)))
notmuch-show-stash-mlarchive-link-alist))
(notmuch-show-get-message-id t))))
(defun notmuch-show-stash-mlarchive-link-and-go (&optional mla)
"Copy an ML Archive URI for the current message to the kill-ring and visit it.
This presumes that the message is available at the selected Mailing List Archive.
If optional argument MLA is non-nil, use the provided key instead of prompting
the user (see `notmuch-show-stash-mlarchive-link-alist')."
(interactive)
(notmuch-show-stash-mlarchive-link mla)
(browse-url (current-kill 0 t)))
;; Commands typically bound to buttons.
(defun notmuch-show-part-button-default (&optional button)
(interactive)
(let ((button (or button (button-at (point)))))
(if (button-get button 'overlay)
(notmuch-show-toggle-part-invisibility button)
(notmuch-show-part-button-internal button notmuch-show-part-button-default-action))))
(defun notmuch-show-part-button-save (&optional button)
(interactive)
(notmuch-show-part-button-internal button #'notmuch-show-save-part))
(defun notmuch-show-part-button-view (&optional button)
(interactive)
(notmuch-show-part-button-internal button #'notmuch-show-view-part))
(defun notmuch-show-part-button-interactively-view (&optional button)
(interactive)
(notmuch-show-part-button-internal button #'notmuch-show-interactively-view-part))
(defun notmuch-show-part-button-pipe (&optional button)
(interactive)
(notmuch-show-part-button-internal button #'notmuch-show-pipe-part))
(defun notmuch-show-part-button-internal (button handler)
(let ((button (or button (button-at (point)))))
(if button
(let ((nth (button-get button :notmuch-part)))
(if nth
(funcall handler (notmuch-show-get-message-id) nth
(button-get button :notmuch-filename)
(button-get button :notmuch-content-type)))))))
;;
(provide 'notmuch-show)
|